Question 1

A solution having a higher osmolarity will always gain water from a solution having a lower osmolarity.

Accepted Answer

A) True 
 B)False

Question 2

At resting membrane potential, passive and active forces exactly balance each other so there is no net movement of ions across the membrane.

Accepted Answer

A) True 
 B)False

Question 3

An electrical gradient

Accepted Answer

A) favors the movement of K+ out of the cell at resting potential 
B) favors the movement of Na+ into the cell at resting potential 
C) opposes the concentration gradient for Na+ at the equilibrium potential for Na+ 
D) favors the movement of Cl- out of the cell at resting potential 
E) prevents the active transport of K+ into the cell 
A) favors the movement of K+ out of the cell at resting potential 
B) favors the movement of Na+ into the cell at resting potential 
C) opposes the concentration gradient for Na+ at the equilibrium potential for Na+ 
D) favors the movement of Cl- out of the cell at resting potential 
E) prevents the active transport of K+ into the cell

Question 4

The hydrophobic interior of the lipid bilayer of the plasma membrane blocks the passage of water-soluble substances.

Accepted Answer

A) True 
 B)False

Question 5

Use the figure above to answer the corresponding questions.
-Describe the various functions of proteins in membranes.

Accepted Answer

The different types of proteins in the p

Question 6

The carbohydrate found in plasma membranes is believed to be involved in the aggregation of cells to form tissue.

Accepted Answer

A) True 
 B)False

Question 7

If a cell's Na⁺-K⁺ pumps quit working, all of that cell's secondary active transporters would quit working immediately.

Accepted Answer

A) True 
 B)False

Question 8

Match the term to the correct description.
a.collagen
b.elastin
c.fibronectin
d.keratin
-Provides tensile strength to the ECM

Accepted Answer

The answer of Match the term to the correct description.
a.collagen
b.elastin
c.fibronectin
d.keratin
-Provides...

Question 9

Individual proteins typically pass through the plasma membrane by

Accepted Answer

A) primary active transport 
B) symport 
C) vesicular transport 
D) secondary active transport 
E) facilitated diffusion 
A) primary active transport 
B) symport 
C) vesicular transport 
D) secondary active transport 
E) facilitated diffusion

Question 10

Which answer is true about NET water movement between two solutions that are separated by a semipermeable membrane.

Accepted Answer

A) It will always be toward the solution with the lower osmotic pressure. 
B) It might be toward the solution with the lower osmotic pressure. 
C) It will always be toward the solution with the lower hydrostatic pressure. 
D) It might be toward both solutions at the same time. 
E) None of the above statements are true. 
A) It will always be toward the solution with the lower osmotic pressure. 
B) It might be toward the solution with the lower osmotic pressure. 
C) It will always be toward the solution with the lower hydrostatic pressure. 
D) It might be toward both solutions at the same time. 
E) None of the above statements are true.

Question 11

Simple diffusion of different substances through the cell membrane can occur through the phospholipid region and through ____________________.

Accepted Answer

The answer of Simple diffusion of different substances through the...

Question 12

Vesicles bind to ____________________ acceptors on the plasma membrane prior to exocytosis

Accepted Answer

The answer of Vesicles bind to ____________________ acceptors on the...

Question 13

Select the correct statement about diffusion through a membrane.

Accepted Answer

A) It depends on random motion. 
B) It involves active forces. 
C) Its rate increases as the membrane's surface area decreases. 
D) Ions move from a lower concentration to a higher concentration. 
E) Large molecules diffuse faster than small molecules. 
A) It depends on random motion. 
B) It involves active forces. 
C) Its rate increases as the membrane's surface area decreases. 
D) Ions move from a lower concentration to a higher concentration. 
E) Large molecules diffuse faster than small molecules.

Question 14

Gap junctions connect the cytoplasm of a cell with the cytoplasm of an adjacent cell.

Accepted Answer

A) True 
 B)False

Question 15

A deficiency in channels that allow ____________________ ions to pass through cell membranes is responsible for cystic fibrosis.

Accepted Answer

The answer of A deficiency in channels that allow ____________________...

Question 16

Carrier-mediated transport

Accepted Answer

A) involves a specific membrane protein 
B) always moves substances against a concentration gradient 
C) always requires energy expenditure 
D) involves protein channels 
E) all of these 
A) involves a specific membrane protein 
B) always moves substances against a concentration gradient 
C) always requires energy expenditure 
D) involves protein channels 
E) all of these

Question 17

A membrane potential of -50 mV is greater than a membrane potential of -70 mV.

Accepted Answer

A) True 
 B)False

Question 18

A transport maximum is associated with carriers that perform ____________________ or ____________________ in the cell membrane.

Accepted Answer

active tra

Question 19

Use the figure above to answer the corresponding questions.
-Describe what would happen to red blood cells if a person received a transfusion of distilled (pure) water.

Accepted Answer

Since the distilled water cont

Question 20

Indicate the various roles of the following ions using the answer in the column below.
a.Na+
b.K+
c.A-
d.Cl-
-Cation in greatest concentration in the ICF

Accepted Answer

The answer of Indicate the various roles of the following...

A solution having a higher osmolarity will always gain water from a solution having a lower osmolarity.

At resting membrane potential, passive and active forces exactly balance each other so there is no net movement of ions across the membrane.

An electrical gradient

The hydrophobic interior of the lipid bilayer of the plasma membrane blocks the passage of water-soluble substances.

Use the figure above to answer the corresponding questions. -Describe the various functions of proteins in membranes.

The carbohydrate found in plasma membranes is believed to be involved in the aggregation of cells to form tissue.

If a cell's Na⁺-K⁺ pumps quit working, all of that cell's secondary active transporters would quit working immediately.

Match the term to the correct description. a.collagen b.elastin c.fibronectin d.keratin -Provides tensile strength to the ECM

Individual proteins typically pass through the plasma membrane by

Which answer is true about NET water movement between two solutions that are separated by a semipermeable membrane.

Simple diffusion of different substances through the cell membrane can occur through the phospholipid region and through ____________________.

Vesicles bind to ____________________ acceptors on the plasma membrane prior to exocytosis

Select the correct statement about diffusion through a membrane.

Gap junctions connect the cytoplasm of a cell with the cytoplasm of an adjacent cell.

A deficiency in channels that allow ____________________ ions to pass through cell membranes is responsible for cystic fibrosis.

Carrier-mediated transport

A membrane potential of -50 mV is greater than a membrane potential of -70 mV.

A transport maximum is associated with carriers that perform or in the cell membrane.

Use the figure above to answer the corresponding questions. -Describe what would happen to red blood cells if a person received a transfusion of distilled (pure) water.

Indicate the various roles of the following ions using the answer in the column below. a.Na+ b.K+ c.A- d.Cl- -Cation in greatest concentration in the ICF

Introduction to Physiology and Homeostasis

Cell Physiology

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System: Afferent Division Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

Body Defenses

The Respiratory System

The Urinary System

Fluid and Acid-Base Balance

The Digestive System

Energy Balance and Temperature Regulation

Principles of Endocrinology: the Central Endocrine Glands

The Peripheral Endocrine Glands

The Reproductive System

Filters

Exam 3: The Plasma Membrane and Membrane Potential

A solution having a higher osmolarity will always gain water from a solution having a lower osmolarity.

At resting membrane potential, passive and active forces exactly balance each other so there is no net movement of ions across the membrane.

An electrical gradient

The hydrophobic interior of the lipid bilayer of the plasma membrane blocks the passage of water-soluble substances.

Use the figure above to answer the corresponding questions. -Describe the various functions of proteins in membranes.

The carbohydrate found in plasma membranes is believed to be involved in the aggregation of cells to form tissue.

If a cell's Na⁺-K⁺ pumps quit working, all of that cell's secondary active transporters would quit working immediately.

Match the term to the correct description. a.collagen b.elastin c.fibronectin d.keratin -Provides tensile strength to the ECM

Individual proteins typically pass through the plasma membrane by

Which answer is true about NET water movement between two solutions that are separated by a semipermeable membrane.

Simple diffusion of different substances through the cell membrane can occur through the phospholipid region and through ____________________.

Vesicles bind to ____________________ acceptors on the plasma membrane prior to exocytosis

Select the correct statement about diffusion through a membrane.

Gap junctions connect the cytoplasm of a cell with the cytoplasm of an adjacent cell.

A deficiency in channels that allow ____________________ ions to pass through cell membranes is responsible for cystic fibrosis.

Carrier-mediated transport

A membrane potential of -50 mV is greater than a membrane potential of -70 mV.

A transport maximum is associated with carriers that perform ____________________ or ____________________ in the cell membrane.

Use the figure above to answer the corresponding questions. -Describe what would happen to red blood cells if a person received a transfusion of distilled (pure) water.

Indicate the various roles of the following ions using the answer in the column below. a.Na+ b.K+ c.A- d.Cl- -Cation in greatest concentration in the ICF

Introduction to Physiology and Homeostasis

Cell Physiology

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System: Afferent Division Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

Body Defenses

The Respiratory System

The Urinary System

Fluid and Acid-Base Balance

The Digestive System

Energy Balance and Temperature Regulation

Principles of Endocrinology: the Central Endocrine Glands

The Peripheral Endocrine Glands

The Reproductive System

Filters

A transport maximum is associated with carriers that perform or in the cell membrane.